MC812A4CPVE8 - 16-Bit 8MHz 112-LQFP MCU | NXP
Référence : MC812A4CPVE8 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1 000 | $0 | $0,00 |
MC812A4CPVE8 Présentation
A microcontroller is a programmable system-on-chip that integrates a processor core, nonvolatile memory, working memory, peripherals, and communication interfaces. The MC812A4CPVE8 belongs to the broader embedded-control hierarchy: MCU, embedded processor, semiconductor, and electronic component. Its CPU12 architecture is designed for embedded control and uses an intermodule bus to connect standard on-chip modules.
Verified listing data identifies the part as an HC12-family 16-bit MCU with an 8 MHz operating frequency, 4 KB EEPROM organized as 4K x 8, and a 112-LQFP package measuring 20 mm x 20 mm. Mouser additionally identifies 1 KB RAM. The product combines serial communications and embedded-control resources suitable for legacy HC12 designs, although the manufacturer page labels it End of Life.
The two SCI peripherals provide asynchronous serial communication paths, while SPI supports synchronous peripheral connectivity. The timer and pulse-accumulation resources support event timing and input measurement, and the 8-bit ADC provides analog signal acquisition. Exact electrical limits, memory-map details, ADC performance, and pin-level functions require confirmation in the manufacturer datasheet.
Potential uses include industrial control, legacy peripheral controllers, communication bridges, timing modules, and embedded instruments where a CPU12 system is already qualified. The 112-LQFP package offers a substantial pin count but requires a fine-pitch PCB footprint and careful signal-integrity review. Because the NXP product page identifies the device as End of Life, engineers should confirm availability, last-time-buy terms, firmware support, and any approved migration before new production designs.
For drop-in planning, verify the exact package drawing, pin multiplexing, memory configuration, oscillator requirements, reset behavior, and peripheral mapping against the selected replacement. A same-footprint MCU is not automatically software- and timing-compatible. The verified cross-reference results identify comparison candidates, but they do not establish a qualified drop-in replacement.
This page consolidates distributor availability, package information, lifecycle context, and engineering cautions around this legacy MCU. It does not invent missing electrical specifications or treat generic parametric matches as guaranteed drop-in replacements.
Alternatives de remplacement direct pour MC812A4CPVE8 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesMC812A4CPVE8 Valeurs maximales et caractéristiques électriques
| Product Type | 16-bit microcontroller |
| Core | CPU12, 16-bit |
| Architecture | HC12 |
| Fréquence d'horloge maximale | 8 MHz |
| Program Memory | 4 KB EEPROM |
| EEPROM Organization | 4K x 8 |
| RAM | 1 KB |
| Serial Communications Interfaces | 2 asynchronous SCI interfaces |
| Serial Peripheral Interface | 1 SPI interface |
| Analog-to-Digital Converter | 8-bit ADC |
| Integration Module | Lite integration module |
| Timer Resource | Timer and pulse accumulation module |
| Boîtier | 112-LQFP |
| Package Dimensions | 20 mm x 20 mm |
| Type de montage | Surface mount |
| Statut du cycle de vie | End of Life |
Guide de configuration des broches du MC812A4CPVE8 20 mm x 20 mm
Configuration des broches du MC812A4CPVE8 (boîtier 20 mm x 20 mm). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour MC812A4CPVE8.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC812A4CPVE8 convient pour 6 applications: Legacy HC12 Industrial Control, Serial Communication Bridge, Motor and Timing Control, Data Acquisition and Instrumentation, Legacy Peripheral Hub, Automotive Accessory Controller.
Legacy HC12 Industrial Control
The MC812A4CPVE8 is a practical fit for maintaining an established HC12-based controller because it combines a 16-bit CPU12 core with an 8 MHz clock, SCI communication, SPI connectivity, timers, pulse accumulation, and an 8-bit ADC. Its 1 KB RAM and 4 KB EEPROM provide the resource envelope for compact embedded-control logic. In a legacy machine, preserving the known software environment may be more valuable than adopting a newer MCU architecture. Before production use, engineers should verify operating-temperature limits, electrical timing, package drawing, and industrial qualification against the official datasheet because those details are not supplied in the verified search results.
Recommandé
Serial Communication Bridge
The two asynchronous SCI interfaces and SPI peripheral make the MC812A4CPVE8 suitable for a legacy communication bridge or protocol concentrator. A CPU12 system can manage multiple serial channels while timer and pulse-accumulation resources support event timing or input-counting functions. The verified 8 MHz operating speed and 4 KB EEPROM should be checked against the actual baud rate, protocol timing, buffering, and update requirements. This is primarily a maintenance-oriented choice because the manufacturer identifies the device as End of Life and the supplied data does not establish modern security or connectivity features.
Recommandé
Motor and Timing Control
For a legacy motor-control or event-timing subsystem, the MC812A4CPVE8 provides a 16-bit CPU12 core at 8 MHz together with timer and pulse-accumulation resources. Those peripherals can be used for input capture, periodic control tasks, and timing-dependent sequencing when the original firmware and board design are already qualified. The 8-bit ADC may be useful for coarse analog monitoring, but motor applications require exact conversion timing, input protection, thermal limits, and safety validation. Those specifications are not present in the supplied verified data and must be obtained from the official manufacturer documentation.
Recommandé
Data Acquisition and Instrumentation
The MC812A4CPVE8 can be evaluated for compact instrumentation using its 8-bit ADC, SCI interfaces, SPI interface, and timer resources. The CPU12 can acquire analog signals, format measurements, and transmit results over a serial link in a legacy instrument design. ADC resolution is verified as 8-bit, but input range, sampling time, accuracy, reference voltage, multiplexer channels, and noise performance are not supplied. Those missing parameters determine whether the device is adequate for precision measurement, so engineers must consult the manufacturer datasheet and validate the analog front end before selecting it for new instrumentation.
Recommandé
Legacy Peripheral Hub
A peripheral-hub design can use the MC812A4CPVE8 to coordinate SPI devices, asynchronous serial equipment, timers, and digital I/O through the HC12 CPU12 architecture. The 4 KB EEPROM may retain configuration data, while 1 KB RAM supports the working state of a modest embedded controller. Compatibility is strongest when an existing board already uses this MCU and its HC12 toolchain. A redesign should verify pin multiplexing, interrupt behavior, memory mapping, and software drivers because none of the complete pinout or memory-map details are present in the verified search results.
Recommandé
Automotive Accessory Controller
The MC812A4CPVE8 may be considered for an accessory controller in an older vehicle system only when the original design and its qualification history support the device. Its SCI, SPI, timer, pulse-accumulation, and 8-bit ADC resources can support distributed accessory logic, but the supplied data does not confirm automotive qualification, temperature range, EMC performance, load dump tolerance, or functional-safety status. Those omissions are material for vehicle electronics. A new automotive program should require current AEC-Q100 and automotive-component requirements to be confirmed from NXP documentation before selecting this End-of-Life MCU.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC812A4CPVE8 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Brand | NXP Semiconductors |
| Package | 112-LQFP |
| Package Dimensions | 20 mm x 20 mm |
| Processor Core | 16-bit CPU12 |
| Maximum Clock Frequency | 8 MHz |
| RAM | 1 KB |
| EEPROM | 4 KB |
| Asynchronous Serial Interfaces | 2 SCI interfaces |
| Analog-to-Digital Converter | 8-bit ADC |
| Lifecycle Status | End of Life |
Principaux différenciateurs
- Established HC12 resource profile (vs MC912D60ACPVE8)
- Communication peripheral set (vs MCU812B6DPBE8)
- Package-specific continuity for legacy boards (vs MN812C4CSVE8)
Notes de conception
Do not treat a similar HC12 part as a drop-in replacement merely because it has a related family name. Confirm the 112-LQFP drawing, pin numbering, supply pins, ground distribution, oscillator connections, reset pins, and every multiplexed peripheral signal against the official MC812A4CPVE8 documentation. The supplied cross-reference results identify comparison candidates, but they do not prove electrical, software, or pin-level compatibility.
For repair or redesign, preserve the original land pattern and verify the package drawing rather than relying on the generic LQFP designation. Check pin 1 orientation, exposed or non-exposed thermal-pad assumptions, lead pitch, body dimensions, and solder-mask clearance. Because the verified package is 112-LQFP at 20 mm x 20 mm, fine-pitch assembly and inspection require process-specific capability and adequate solder-joint inspection coverage.
Validate the complete power tree before substituting or populating this End-of-Life MCU. The verified search data does not provide operating-voltage limits, absolute maximum ratings, current consumption, or power-up requirements, so none should be inferred. Review the datasheet for supply sequencing, decoupling, clock startup, reset thresholds, and I/O levels, then validate the assembled board at temperature and under the expected peripheral load.
Informations de conformité
The supplied verified results do not provide RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statements. The component is a microcontroller, so AEC-Q100 is not_applicable here rather than qualified.
